h5ls List the content of an HDF5 object (group or dataset) content = h5ls(obj [, name [, filter]]) content = h5ls(filename, name [, filter]) obj a H5Object name a string giving the path to the object to list filename a string giving the filename filter a string giving the type to filter content a matrix of strings with 2 columns List the content of a group or a dataset. The first column gives the names and the second one the type of the listed element. The filter can take one of the values 'group' (or 'g'), 'dataset' (or 'd'), 'type' (or 't') and 'attribute' (or 'a'). For example, if 'g' is given, only the groups will be returned. h5open 5.5.0 HDF5 module introduced.